Recent advances in active infrared thermography for non-destructive testing of aerospace components

Francesco Ciampa, Pooya Mahmoodi, Fulvio Pinto, Michele Meo

Research output: Contribution to journalReview article

33 Citations (Scopus)

Abstract

Active infrared thermography is a fast and accurate non-destructive evaluation technique that is of particular relevance to the aerospace industry for the inspection of aircraft and helicopters’ primary and secondary structures, aero-engine parts, spacecraft components and its subsystems. This review provides an exhaustive summary of most recent active thermographic methods used for aerospace applications according to their physical principle and thermal excitation sources. Besides traditional optically stimulated thermography, which uses external optical radiation such as flashes, heaters and laser systems, novel hybrid thermographic techniques are also investigated. These include ultrasonic stimulated thermography, which uses ultrasonic waves and the local damage resonance effect to enhance the reliability and sensitivity to micro-cracks, eddy current stimulated thermography, which uses cost-effective eddy current excitation to generate induction heating, and microwave thermography, which uses electromagnetic radiation at the microwave frequency bands to provide rapid detection of cracks and delamination. All these techniques are here analysed and numerous examples are provided for different damage scenarios and aerospace components in order to identify the strength and limitations of each thermographic technique. Moreover, alternative strategies to current external thermal excitation sources, here named as material-based thermography methods, are examined in this paper. These novel thermographic techniques rely on thermoresistive internal heating and offer a fast, low power, accurate and reliable assessment of damage in aerospace composites.

LanguageEnglish
Article number609
JournalSensors (Switzerland)
Volume18
Issue number2
DOIs
StatusPublished - 16 Feb 2018

Fingerprint

Nondestructive examination
Aircraft
Microwaves
Eddy currents
damage
eddy currents
Heating
spacecraft components
engine parts
cracks
Hot Temperature
Spacecraft
excitation
Cracks
Electromagnetic Radiation
induction heating
aerospace industry
Induction heating
Aerospace applications
helicopters

Keywords

  • Aerospace structures
  • Composite materials
  • Infrared thermography
  • Material damage
  • Non-destructive evaluation
  • Smart materials

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Recent advances in active infrared thermography for non-destructive testing of aerospace components. / Ciampa, Francesco; Mahmoodi, Pooya; Pinto, Fulvio; Meo, Michele.

In: Sensors (Switzerland), Vol. 18, No. 2, 609, 16.02.2018.

Research output: Contribution to journalReview article

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